Comparative Study on Effect of Rheological Properties on Stability of Ceramic Slurry

Abstract

Abstract: In ceramic production, the stability of slurry plays a crucial role in ensuring high product quality and production efficiency. This study was conducted to investigate the effects of rheological properties on the suspension stability of ceramic slurry. The effects of various stabilizers, such as polyethylene glycol, polyoxyethylene oxide, polyvinyl alcohol, and guar gum, on the rheological properties of ceramic slurry were analyzed. Then, the independent effects of shear viscosity and elasticity on the stability were compared. The results show that there are significant differences in suspension stability of ceramic slurry with different stabilizers under the same particle size and volume fraction condition, although the viscosity is similar. Notably, the slurry that utilized guar gum as a stabilizer exhibits the best stability. Furthermore, the storage modulus G′, loss modulus G″, and loss factor tan δ are the key viscoelastic parameters that affect the stability of ceramic slurry. When the elasticity of ceramic slurry is same, the stability of slurry is improved with the increase of shear viscosity. The results emphasize the importance of elasticity and viscosity of slurry in suspended particles. The study highlights that viscoelastic parameters and viscosity have noticeable effects on particle settlement behavior, offering a fresh perspective for stability research and application of ceramic slurry. The research provides valuable references and suggestions for selecting appropriate stabilizers to enhance the stability of ceramic slurry and optimize the formulation and production process.

Key words: ceramic slurry, rheological property, viscoelastic, viscosity, stability, stabilizer

CLC Number:

TQ174

BAO Zhilei, YU Huan, JIANG Chao. Comparative Study on Effect of Rheological Properties on Stability of Ceramic Slurry[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(12): 4553-4562.

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